|Publication number||US6857212 B2|
|Application number||US 10/222,147|
|Publication date||Feb 22, 2005|
|Filing date||Aug 16, 2002|
|Priority date||Aug 18, 2001|
|Also published as||US20030066220|
|Publication number||10222147, 222147, US 6857212 B2, US 6857212B2, US-B2-6857212, US6857212 B2, US6857212B2|
|Original Assignee||Michael Velez|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (12), Referenced by (11), Classifications (13), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is claiming the benefit and filing date of the previously filed provisional application with the application No. 60/313,093, filed on Aug. 18,2001.
This invention relates to illuminated signs.
In streets, public places and buildings, signs are installed to provide people with directions or advertise a product or service.
Typically these signs consist of thick heavy and hollow boxes that sometimes are difficult and cumbersome to install. Since the boxes are hollow, they have frequent problems with wind breakage and water leakage. These boxes are illuminated from the inside out. Inside the boxes, fluorescent lamps or other bright lamps are placed and their light is projected to the outside of the box, therefore illuminating the street name or number, or the advertisement.
The light source requires a heavy use of power. Also the installation and maintenance is expensive, with frequent reparations and replacement of lamps, due to their limited duration.
The advantages of the visual display unit is that the light is projected thorough the edges and reflected out. This allows the sign to be manufactured as a thin and lightweight sign that is easy to install and is resistant to windy conditions and watertight.
The installation of this type of sign will be quick and inexpensive.
Also this new sign uses a small amount of power, compared to a traditional fluorescent sign, therefore, this new sign can be used with batteries or solar power systems. The type of light source used by this sign will ensure long usage before any repair or maintenance is done.
It is the object of this invention to provide a sign that uses light emitting diodes as a source of light. It is another object of this invention to project the light from the light emitting diode through the edge of the panel sign. The light is projected out, by first deflecting the light projected through the edge to a reflective material positioned behind the panel, the deflected light strikes the reflective material and projects outside the panel.
3 printed circuit board
4 prismatic printed area
6 insulating channel
9 junction box
10 power source
12 light emitting diodes
14 indented panel
15 reflective coating
As shown in
To hang or attach the sign to a pole, a bracket (7) is attached to the aluminum extrusion (2) as shown in
Light from the light emitting diodes (12)
The light emitting diodes (12) are attached to the printed circuit boards (3) and housed outside the sign. To prevent water from entering into the sign, a sealing compound (13) is placed between the aluminum housing extrusion (2) and the acrylic panel (1).
Light from the light emitting diodes (12) can be projected through a double sided acrylic panel (1) as shown in
To reflect light in a more efficient manner an alternative system is shown in
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|U.S. Classification||40/546, 362/632|
|International Classification||G09F19/22, G02B6/00, F21V8/00|
|Cooperative Classification||G09F19/22, G02B6/0068, G02B6/0091, G02B6/0095, G02B6/0036|
|European Classification||G02B6/00L6U6R, G02B6/00L6O4B, G09F19/22|
|May 22, 2008||FPAY||Fee payment|
Year of fee payment: 4
|Jun 12, 2012||FPAY||Fee payment|
Year of fee payment: 8